body {
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #2c2c2c;
    font-family: 'Courier New', monospace;
}

#game-container {
    box-shadow: 0 4px 20px rgba(0,0,0,0.5);
}

#game-canvas {
    display: block;
    border: 2px solid #000;
}